<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>登录页面</title>
</head>
<body>
  <div th:if="${param.error}">
      无效的用户名和密码
  </div>
  <div th:if="${param.logout}">
      您已注销
  </div>
  <form th:action="@{/login}" method="post">
      <div><label>账号：<input type="text" name="username"/></label></div>
      <div><label>密码：<input type="text" name="password"/></label></div>
      <div><input type="submit" value="登陆"/></div>
  </form>
</body>
</html>